---
kind: "section"
citation: "14 C.F.R. § 25.1017"
title: "14"
number: "25.1017"
heading: "Oil lines and fittings."
url: "https://uscodex.org/cfr/14/25.1017"
---

# §25.1017. Oil lines and fittings.

- (a) Each oil line must meet the requirements of [§ 25.993](/cfr/14/25.993.md) and each oil line and fitting in any designated fire zone must meet the requirements of [§ 25.1183](/cfr/14/25.1183.md).
- (b) Breather lines must be arranged so that—
  - (1) Condensed water vapor that might freeze and obstruct the line cannot accumulate at any point;
  - (2) The breather discharge does not constitute a fire hazard if foaming occurs or causes emitted oil to strike the pilot's windshield; and
  - (3) **The breather does not discharge into the engine air induction system.**

## Notes

### Authority

Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701, 44702 and 44704; Pub. L. 115-254, 132 Stat 3281 (49 U.S.C. 44903 note).

### Source

Source: Docket No. 5066, 29 FR 18291, Dec. 24, 1964, unless otherwise noted.